CN107532706B - The start control device of electric vehicle - Google Patents

The start control device of electric vehicle Download PDF

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Publication number
CN107532706B
CN107532706B CN201580078926.5A CN201580078926A CN107532706B CN 107532706 B CN107532706 B CN 107532706B CN 201580078926 A CN201580078926 A CN 201580078926A CN 107532706 B CN107532706 B CN 107532706B
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CN
China
Prior art keywords
gear
clutch
speed
starting
speed change
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CN201580078926.5A
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Chinese (zh)
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CN107532706A (en
Inventor
月崎敦史
古闲雅人
福田宽之
礼田良平
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Nissan Motor Co Ltd
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Nissan Motor Co Ltd
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/02—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of clutch
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
    • B60K17/06—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/36—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/38—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the driveline clutches
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/68—Inputs being a function of gearing status
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/02—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
    • F16H61/0202—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric
    • F16H61/0204—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal
    • F16H61/0213—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal characterised by the method for generating shift signals
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/04—Smoothing ratio shift
    • F16H61/0403—Synchronisation before shifting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/26—Generation or transmission of movements for final actuating mechanisms
    • F16H61/36—Generation or transmission of movements for final actuating mechanisms with at least one movement being transmitted by a cable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/90—Vehicles comprising electric prime movers
    • B60Y2200/91—Electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/90—Vehicles comprising electric prime movers
    • B60Y2200/92—Hybrid vehicles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/36—Inputs being a function of speed
    • F16H59/44—Inputs being a function of speed dependent on machine speed of the machine, e.g. the vehicle
    • F16H2059/446—Detecting vehicle stop, i.e. the vehicle is at stand still, e.g. for engaging parking lock
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/02—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
    • F16H61/0202—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric
    • F16H61/0204—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal
    • F16H61/0213—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal characterised by the method for generating shift signals
    • F16H2061/023—Drive-off gear selection, i.e. optimising gear ratio for drive off of a vehicle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/04—Smoothing ratio shift
    • F16H61/0403—Synchronisation before shifting
    • F16H2061/0407—Synchronisation before shifting by control of clutch in parallel torque path
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/04—Smoothing ratio shift
    • F16H2061/047—Smoothing ratio shift by preventing or solving a tooth butt situation upon engagement failure due to misalignment of teeth
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/0021—Transmissions for multiple ratios specially adapted for electric vehicles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H2312/00—Driving activities
    • F16H2312/02—Driving off
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H2312/00—Driving activities
    • F16H2312/14—Going to, or coming from standby operation, e.g. for engine start-stop operation at traffic lights
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/62—Hybrid vehicles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/72—Electric energy management in electromobility

Abstract

A kind of start control device of electric vehicle is provided, there are start request, realizes the good vehicle start of response for inhibiting starting impact and being directed to start request.The 1st motor generator (MG1) is included in drive system, is used as power source；And stage-geared gearbox (1), speed change is carried out to the output from the 1st motor generator (MG1) and is transmitted to driving wheel (19).Stage-geared gearbox (1), which has, is used as speed change element according to the engaging clutch (C1), (C2), (C3) that initiate from the stroke of open position and be engaged.Following transmission control unit (23) are provided in the hybrid vehicle, i.e., if when vehicle stops as the 3rd engaging clutch (C3) engagement of starting clutch, then comprising until start to walk next time, maintaining the 3rd engagement for engaging clutch (C3) including vehicle stop state.

Description

The start control device of electric vehicle
Technical field
The present invention relates to a kind of start control devices of electric vehicle, have in the drive system for being originated from motor and become Fast device has in speed changer according to initiating from the stroke of open position and the engaging clutch that is engaged is as speed change element.
Background technique
Currently, it is known that following device, that is, when the block selecting to the starting shift gear for engaging jaw clutch operates, Motor is driven in moment, is rotated and is transferred to transmission input shaft, can make speed changer from neutral gear position to Walk shift gear selection position switching (for example, referring to patent document 1).
Patent document 1: Japanese Unexamined Patent Publication 6-245329 bulletin
Summary of the invention
However, in existing apparatus, even if the jaw clutch based on hydraulic to be connect as automatic transmission It closes and switches from neutral gear position to starting shift gear selection position, hydraulic generation pumps also in vehicle stopped process, in motor Stop in the state of stopping.Accordingly, there exist following problems, that is, until entering into accelerator pedal and making the next of motor starting Until when secondary driveaway operation, the shift gear selection state that starts to walk will not be become, not can avoid starting impact, starting lag.
The present invention is conceived to the above problem and proposes, its purpose is to provide a kind of starting of electric vehicle controls Device is realized there are start request and inhibits starting impact and rise for the good vehicle of response of start request Step.
To achieve the goals above, electric vehicle of the invention includes the motor as power source in drive system； And speed changer, speed change will be carried out to the output from motor and is transmitted to driving wheel.There is speed changer basis to initiate from The stroke of open position and the multiple engaging clutches being engaged are as speed change element.
In the electric vehicle, be provided with following starting controller used, that is, by it is in multiple engaging clutches, exist When being engaged when start request and the engaging clutch that motor and driving wheel link being known as starting clutch, if risen Step is engaged with clutch when vehicle stops, then comprising the control that until start to walk next time, starts to walk including vehicle stop state The engagement of device maintenance starting clutch.
Speed changer has the starting shift gear for engaging starting clutch,
If carrying out operating from traveling gear to the block selecting of parking shift, neutral gear under vehicle stop state, until next time Until selection traveling gear, starting controller used maintenance starting shift gear.
Invention effect
Thus, if starting is engaged with clutch when vehicle stops, comprising vehicle stop state inside until next Until secondary starting, the engagement of starting clutch is maintained.
That is, in the case where starting is engaging clutch with clutch, if the mutual phase in the top surface of tooth is consistent, nothing Method is advanced in the direction of joining, needs to be engaged after making phase shifting, to need the time.
In this regard, by engaging starting with clutch in advance, in the feelings that there is the request of starting from vehicle stop state Under condition, without the joint action for the starting clutch being engaged, starting can be inhibited to impact, and can be shortened from start request Time needed for vehicle start.
As a result, can be realized the sound for inhibiting starting impact and being directed to start request there are start request Answer good vehicle start.
If carrying out operating from traveling gear to the block selecting of parking shift, neutral gear under vehicle stop state, until next time Until selection traveling gear, starting shift gear is maintained.
As a result, in the case where existing from the request that parking shift, neutral gear start to walk as early as possible, it can shorten from the choosing to driving gear Select the time operated to vehicle start.
Detailed description of the invention
Fig. 1 is the drive system and control for indicating to apply the hybrid vehicle of the start control device of embodiment 1 The overall system view of system.
Fig. 2 is the multi-stage gear change for indicating to be equipped on the hybrid vehicle for the start control device for applying embodiment 1 The control system architecture figure of the structure of the change control system of fast device.
Fig. 3 is the multi-stage gear change for indicating to be equipped on the hybrid vehicle for the start control device for applying embodiment 1 The speed change corresponding diagram synoptic diagram for the thought that speed change pattern is switched in fast device.
Fig. 4 is the multi-stage gear change for indicating to be equipped on the hybrid vehicle for the start control device for applying embodiment 1 The speed change pattern figure for the speed change pattern that switching position based on 3 engaging clutches in fast device is realized.
Fig. 5 is the flow chart for indicating the process of the starting control processing executed by the transmission control unit of embodiment 1.
Fig. 6 is the torsion of the flowing of the MG1 torque of stage-geared gearbox when indicating the selection speed change pattern of " EV2nd " Square flow chart.
Fig. 7 is the torsion of the flowing of the MG1 torque of stage-geared gearbox when indicating the selection speed change pattern of " EV1st " Square flow chart.
Fig. 8 is that the reduction of speed speed change for indicating that the speed change pattern from " EV2nd " to " EV1st " of stage-geared gearbox switches is subtracting Speed MG1 revolving speed MG1 1st clutch MG1 2nd clutch when finishing during speed and vehicle is stopped The timing diagram of each characteristic of block selecting position.
Fig. 9 is that the reduction of speed speed change for indicating that the speed change pattern from " EV2nd " to " EV1st " of stage-geared gearbox switches is subtracting Speed MG1 revolving speed MG1 1st clutch MG1 2nd clutch when just vehicle being stopped is not finished during speed The timing diagram of each characteristic of block selecting position.
Figure 10 is the drive system and control system for indicating to apply the electric car of the start control device of embodiment 2 Overall system view.
Specific embodiment
In the following, the starting control of embodiment 1 based on the figure and embodiment 2 and the electric vehicle of the invention to realization The best mode of device processed is illustrated.
Embodiment 1
Firstly, being illustrated to structure.
The start control device of embodiment 1 is applied to have 1 engine, 2 motor generators and has 3 cards Close a hybrid vehicle (example of electric vehicle of the stage-geared gearbox of clutch as driving system structure element Son).In the following, the structure of the start control device of the hybrid vehicle of embodiment 1 is divided into " overall system structure ", " speed change Control system architecture ", " speed change pattern structure ", " starting control processing structure " and be illustrated.
[overall system structure]
Fig. 1 shows the drive system of the hybrid vehicle for the start control device for applying embodiment 1 and control systems System.In the following, being illustrated based on Fig. 1 to overall system structure.
As shown in Figure 1, the drive system of hybrid vehicle has internal combustion engine ICE, the 1st motor generator MG1, the 2nd electricity Dynamic generator MG2 and the stage-geared gearbox 1 with 3 engaging clutches C1, C2, C3.In addition, " ICE " is The breviary of " Internal-Combustion Engine ".
The internal combustion engine ICE is, for example, the gasoline engine that the preceding car room of vehicle is configured at using crankshaft direction as vehicle width direction Machine, diesel engine etc..The case of transmission 10 of internal combustion engine ICE and stage-geared gearbox 1 links, and internal combustion engine exports Axis is connect with the 1st axis 11 of stage-geared gearbox 1.In addition, internal combustion engine ICE substantially using the 2nd motor generator MG2 as rise It moves motor and carries out MG2 starting.But the case where MG2 starting using forceful electric power battery 3 is unable to ensure when guarding against such as extremely low temperature And retains and start motor 2.
It is share power supply three that the 1st motor generator MG1 and the 2nd motor generator MG2, which is with forceful electric power battery 3, The mutually permanent-magnet type synchronous motor of exchange.The stator of 1st motor generator MG1 is fixed on the shell of the 1st motor generator MG1, The shell is fixed on the case of transmission 10 of stage-geared gearbox 1.Moreover, with the rotor one of the 1st motor generator MG1 1st motor shaft is connect with the 2nd axis 12 of stage-geared gearbox 1.The stator of 2nd motor generator MG2 is fixed on the 2nd electronic hair The shell of motor MG2, the shell are fixed on the case of transmission 10 of stage-geared gearbox 1.Moreover, with the 2nd motor generator 2nd motor shaft of the rotor one of MG2 is connect with the 6th axis 16 of stage-geared gearbox 1.Direct current is become in power operation It is changed to three-phase alternating current and three-phase alternating current is transformed to the 1st inverter 4 of direct current in regeneration, via 1AC harness 5 And it is connect with the stator coil of the 1st motor generator MG1.Power operation when by DC power conversion be three-phase alternating current and Three-phase alternating current is transformed to the 2nd inverter 6 of direct current when regeneration, via 2AC harness 7 with the 2nd motor generator MG2 Stator coil connection.Using DC harness 8 via terminal box 9 and by forceful electric power battery 3 and the 1st inverter 4 and the 2nd inverter 6 Connection.
The stage-geared gearbox 1 is the constant mesh transmission for the multipair gear mesh for having gear ratio different, is had: 6 gear shafts 11~16, they are configured to be parallel to each other and for gear to be arranged in case of transmission 10；And 3 engagings Clutch C1, C2, C3, they select gear mesh.The 1st axis 11, the 2nd axis 12, the 3rd axis 13, the 4th axis are provided with as gear shaft 14, the 5th axis 15 and the 6th axis 16.As engaging clutch and be provided with the 1st engaging clutch C1, the 2nd engaging clutch C2 with And the 3rd engaging clutch C3.In addition, being additionally provided with the engagement to shell intracorporal bearing portions, gear in case of transmission 10 Part supplies the electric oil pump 20 of lubricating oil.
1st axis 11 is to configure in order from the right side in Fig. 1 with the axis of internal combustion engine ICE connection in the 1st axis 11 There are the 1st gear 101, the 2nd gear 102, the 3rd gear 103.1st gear 101 is integrated relative to the setting of the 1st axis 11 (comprising one Change and fix).2nd gear 102 and the 3rd gear 103 are the idle running for the periphery that the boss portion protruded in the axial direction is inserted in the 1st axis 11 Gear is configured to drive and link relative to the 1st axis 11 via the 2nd engaging clutch C2.
2nd axis 12 is to link and make the outer fix of axle center and the 1st axis 11 with the 1st motor generator MG1 consistently The Cylindorical rod of arranged coaxial is configured with the 4th gear 104, the 5th gear 105 in the 2nd axis 12 in order from the right side of Fig. 1.4th Gear 104 and the 5th gear 105 are integrated and (fix comprising integration) relative to the setting of the 2nd axis 12.
3rd axis 13 is arranged in the axis of the outlet side of stage-geared gearbox 1, in the 3rd axis 13, from the right side of Fig. 1 It rises and is configured with the 6th gear 106, the 7th gear 107, the 8th gear 108, the 9th gear 109, the 10th gear 110 in order.6th gear 106, the 7th gear 107 and the 8th gear 108 are integrated and (fix comprising integration) relative to the setting of the 3rd axis 13.9th gear 109 and the 10th gear 110 is the idler gear for the periphery that the boss portion protruded in the axial direction is inserted in the 3rd axis 13, via the 3rd card It closes clutch C3 and is configured to drive connection relative to the 3rd axis 13.Moreover, the 2nd gear of the 6th gear 106 and the 1st axis 11 102 engagements, the 7th gear 107 are engaged with the 16th gear 116 of differential gear 17, the 3rd gear of the 8th gear 108 and the 1st axis 11 103 engagements.9th gear 109 is engaged with the 4th gear 104 of the 2nd axis 12, the 5th gear 105 of the 10th gear 110 and the 2nd axis 12 Engagement.
4th axis 14 is the axis that both ends are supported in case of transmission 10, the 4th axis 14 from the right side of Fig. 1 in order Configured with the 11st gear 111, the 12nd gear 112, the 13rd gear 113.11st gear 111 is integrated relative to the setting of the 4th axis 14 (fixed comprising integration).12nd gear 112 and the 13rd gear 113 are that the boss portion protruded in the axial direction is inserted in the 4th axis 14 Periphery idler gear, via the 1st engaging clutch C1 and be configured to relative to the 4th axis 14 drive link.Moreover, the 11 gears 111 are engaged with the 1st gear 101 of the 1st axis 11, and the 12nd gear 112 is engaged with the 2nd gear 102 of the 1st axis 11, and the 13rd Gear 113 is engaged with the 4th gear 104 of the 2nd axis 12.
5th axis 15 is the axis that both ends are supported in case of transmission 10, is integrated with the setting of the 14th gear 114 and (includes Integration is fixed), the 14th gear 114 is engaged with the 11st gear 111 of the 4th axis 14.
6th axis 16 is the axis with the 2nd motor generator MG2 connection, is integrated with the setting of the 15th gear 115 and (includes Integration is fixed), the 15th gear 115 is engaged with the 14th gear 114 of the 5th axis 15.
Moreover, mechanically the 2nd motor generator MG2 and internal combustion engine ICE is linked using gear column, wherein the tooth Wheel column are made of intermeshing 15th gear 115, the 14th gear 114, the 11st gear 111, the 1st gear 101.The gear is listed in As the reduction gearing column for making MG2 revolving speed slow down when being started by the MG2 that the 2nd motor generator MG2 carries out internal combustion engine ICE, logical As the increasing for making internal-combustion engine rotational speed speedup when the MG2 for crossing the driving of internal combustion engine ICE and the 2nd motor generator MG2 being made to generate electricity generates electricity Fast gear column.
The 1st engaging clutch C1 is installed between in the 4th axis 14, the 12nd gear 112 and the 13rd gear 113, no It is the jaw clutch engaged by the engagement travel under rotation synchronous regime with synchronization mechanism.The 1st engage from When clutch C1 is in left-interface position (Left), driving connection is carried out to the 4th axis 14 and the 13rd gear 113.The 1st engage from When clutch C1 is in neutral position (N), the 4th axis 14 and the 12nd gear 112 are disconnected, and by the 4th axis 14 and the 13rd gear 113 It disconnects.When the 1st engaging clutch C1 is in right side bonding station (Right), the 4th axis 14 and the 12nd gear 112 are driven Dynamic connection.
The 2nd engaging clutch C2 is installed between the 2nd gear 102 and the 3rd gear 103 in the 1st axis 11, is not had Synchronization mechanism is the jaw clutch engaged by the engagement travel under rotation synchronous regime.At the 2nd engaging clutch C2 When left-interface position (Left), driving connection is carried out to the 1st axis 11 and the 3rd gear 103.At the 2nd engaging clutch C2 When neutral position (N), the 1st axis 11 and the 2nd gear 102 are disconnected, and the 1st axis 11 and the 3rd gear 103 are disconnected.The 2nd When engaging clutch C2 is in right side bonding station (Right), driving connection is carried out to the 1st axis 11 and the 2nd gear 102.
The 3rd engaging clutch C3 is installed between the 9th gear 109 and the 10th gear 110 in the 3rd axis 13, is not had There is synchronization mechanism, is the jaw clutch engaged by the engagement travel under rotation synchronous regime.Clutch C3 is engaged the 3rd When in left-interface position (Left), driving connection is carried out to the 3rd axis 13 and the 10th gear 110.Clutch C3 is engaged the 3rd When in neutral position (N), the 3rd axis 13 and the 9th gear 109 are disconnected, and the 3rd axis 13 and the 10th gear 110 are disconnected.? When 3rd engaging clutch C3 is in right side bonding station (Right), driving connection is carried out to the 3rd axis 13 and the 9th gear 109.And And drive of the 16th gear 116 engaged with the 7th gear 107 via the drive shaft 18 of differential gear 17 and left and right and with left and right Driving wheel 19 connects, wherein the 3rd axis 13 setting of the 7th gear 107 and stage-geared gearbox 1 is integrated (comprising integrated solid It is fixed).
As shown in Figure 1, the control system of hybrid vehicle has mixing control module 21, motor control unit 22, becomes Fast device control unit 23 and control unit of engine 24.
The mixing control module 21 (referred to as: " HCM ") is to bear suitably to carry out pipe to the consumption energy of vehicle entirety The comprehensively control unit of the function of reason.The mixing control module 21 is able to carry out two-way information by CAN communication line 25 The mode of exchange and other control units (motor control unit 22, transmission control unit 23, control unit of engine 24 etc.) Connection.In addition, " CAN " of CAN communication line 25 refers to the breviary of " Controller Area Network ".
The motor control unit 22 (referred to as: " MCU ") is referred to using the control for the 1st inverter 4 and the 2nd inverter 6 Enable and carry out the power operation control of the 1st motor generator MG1 and the 2nd motor generator MG2, Regeneration control etc..As being directed to There is " moment of torsion control " and " revolving speed FB control " in the control model of the 1st motor generator MG1 and the 2nd motor generator MG2. " moment of torsion control " is to chase after real electrical machinery torque if it is determined that the target motor torque for being directed to target drive force and sharing then carries out With the control of target motor torque." revolving speed FB control " is under steam if there is any for making engaging clutch C1, C2, C3 A speed change request being engaged, it is determined that so that the target motor revolving speed that the rotation of clutch input and output revolving speed is synchronous, with So that real electrical machinery revolving speed carries out the control for exporting FB torque to the convergent mode of target motor revolving speed.
The transmission control unit 23 (referred to as: " TMCU ") based on defined input information and to electric actuator 31, 32,33 (referring to Fig. 2) output current-order, thus carries out the speed change switched over to the speed change pattern of stage-geared gearbox 1 Control.In the speed Control, engaging clutch C1, C2, C3 is selectively set to be engaged/disconnect, from multipair gear mesh Selection participates in the gear mesh of power transmitting.Here, in the speed change for making either one or two of engaging clutch C1, C2, C3 for disconnecting engagement When request, ensure to be engaged to inhibit the rotational speed difference of clutch input and output, while using the 1st motor generator MG1 Or the 2nd motor generator MG2 revolving speed FB control (rotation synchronously control).
The control unit of engine 24 (referred to as: " ECU ") based on defined input information and to motor control unit 22, Spark plug, fuel injection actuator etc. export control instruction, thus carry out the starting control of internal combustion engine ICE, internal combustion engine ICE stops Only control, fuel cut-off control etc..
[change control system structure]
The stage-geared gearbox 1 of embodiment 1 is characterized in that, is used as speed change element based on the card being engaged It closes clutch C1, C2, C3 (jaw clutch), thus weakens towing and realize efficient activity.Moreover, if there is making to engage clutch The speed change request that either one or two of device C1, C2, C3 are engaged, then using the 1st motor generator MG1, (engaging clutch C3's is connect When conjunction) or the 2nd motor generator MG2 when the engagement of C2 (engaging clutch C1) carry out rotation synchronization, if sentenced in synchronizing Determine in the range of speeds, then start engagement travel, is achieved in the rotational speed difference of clutch input and output.In addition, if there is making to connect The speed change request that any of engaging clutch C1, C2, C3 of conjunction are disconnected, then the clutch transmitting for reducing cut-off clutch are turned round Square begins breaking stroke, is achieved in the request if becoming less than or equal to disconnect torque decision content.In the following, based on figure The change control system structure of 2 pairs of stage-geared gearbox 1 is illustrated.
As shown in Fig. 2, change control system has the 1st engaging clutch C1, the 2nd engaging clutch C2 and the 3rd engaging Clutch C3 is as engaging clutch.With the 1st electric actuator 31, the 2nd electric actuator 32 and the 3rd electric actuator 33 As actuator.Block moreover, having the 1st engaging clutch operating mechanism the 41, the 2nd to engage clutch operating mechanism 42 and the 3rd Clutch operating mechanism 43 is closed as by actuator action and is transformed to clutch engaging/disconnection movement mechanism.Also, has and become Control list of the fast device control unit 23 as the 1st electric actuator 31, the 2nd electric actuator 32 and the 3rd electric actuator 33 Member.
It is described 1st engaging clutch C1, the 2nd engaging clutch C2 and the 3rd engaging clutch C3 be to neutral gear position (N: Open position), left-interface position (Left: left side clutch is engaged position) and right side bonding station (Right: right Side clutch engagement bonding station) jaw clutch that switches over.Each engaging clutch C1, C2, C3 are identical structure, With coupling sleeve 51,52,53, left side jaw clutch ring 54,55,56 and right side jaw clutch ring 57,58,59.Connection Female connector cylinder 51,52,53 is set via the wheel hub outside the figure for being fixed on the 4th axis 14, the 1st axis 11, the 3rd axis 13 and by spline combination Claw tooth 51a, 51b, 52a, 52b, 53a, the 53b being made of flat top surface can be had in two sides along axial traveling by being set to. Also, there is fork pockets 51c, 52c, 53c in the circumferential central portion of coupling sleeve 51,52,53.Left side jaw clutch ring 54,55, 56 are fixed on the boss portion of each gear 113,103,110 of the left side idler gear as each engaging clutch C1, C2, C3, tool There are claw tooth 54a, 55a, the 56a being made of the flat top surface opposite with claw tooth 51a, 52a, 53a.Right side jaw clutch Ring 57,58,59 is fixed on the convex of each gear 112,102,109 of the right side idler gear as each engaging clutch C1, C2, C3 Platform portion has claw tooth 57b, 58b, the 59b being made of the flat top surface opposite with claw tooth 51b, 52b, 53b.
1st engaging clutch operating mechanism the 41, the 2nd engages clutch operating mechanism 42 and the 3rd and engages clutch Actuating mechanism 43 be the rotational action of electric actuator 31,32,33 is transformed to coupling sleeve 51,52,53 it is axial advance it is dynamic The mechanism of work.Each engaging clutch operating mechanism 41,42,43 is identical structure, has pivot link 61,62,63, shift Bar 64,65,66, fork 67,68,69.One end of pivot link 61,62,63 is set to the actuating of electric actuator 31,32,33 Device axis, the other end with gear lever 64,65,66 can link in a manner of relative displacement.Gear lever 64,65,66 is in bar framing bits It sets and spring 64a, 65a, 66a is installed, can be stretched according to the size and Orientation of bar transmission force.One end of fork 67,68,69 It is fixed on gear lever 64,65,66, the other end is configured at fork pockets 51c, 52c, 53c of coupling sleeve 51,52,53.
The input of transmission control unit 23 has from vehicle speed sensor 71, accelerator opening sensor 72, speed changer Output shaft speed sensor 73, engine speed sensor 74, MG1 speed probe 75, MG2 speed probe 76, open circuit are opened Close 77 sensor signal, the switching signals waited.In addition, transmission output speed sensor 73 is set to the shaft end of the 3rd axis 13 The axis revolving speed of the 3rd axis 13 is detected in portion.Moreover, having position servo control portion (for example, the position based on PID control is watched Dress system), engaging clutch C1, C2 which determines the position according to coupling sleeve 51,52,53, C3 be engaged and disconnection is controlled.Position servo control portion input has from the 1st sleeve portion sensor the 81, the 2nd The sensor signal of sleeve portion sensor 82, the 3rd sleeve portion sensor 83.Moreover, by each sleeve portion sensor 81, 82,83 sensor values is read in, and applies electric current so that the position of coupling sleeve 51,52,53 becomes to electric actuator 31,32,33 For bonding station or open position based on engagement travel.That is, being welded in coupling sleeve 51,52,53 by being formed as being in Claw tooth and be welded in idler gear claw tooth both sides engagement the position of engagement engagement state, thus make idler gear with 4th axis 14, the 1st axis 11, the driving connection of the 3rd axis 13.On the other hand, coupling sleeve 51,52,53 by being displaced in the axial direction And is formed as being welded in the claw tooth of coupling sleeve 51,52,53 and is welded in the claw tooth of idler gear and be in disengaged orientation Off-state so that idler gear from the 4th axis 14, the 1st axis 11, the 3rd axis 13 separation.
[speed change pattern structure]
The stage-geared gearbox 1 of embodiment 1 is characterized in that, due to not having the rotational speed differences such as fluid coupling and absorbing element It can reduce power transmitting loss, and reduce ICE shift gear and assisting using motor internal combustion engine ICE, thus Realize densification (EV shift gear: 1-2 gear, ICE shift gear: 1-4 gear).In the following, based on Fig. 3 and Fig. 4 to stage-geared gearbox 1 Speed change pattern structure be illustrated.
For the thought of speed change pattern, as shown in figure 3, being less than or equal to the starting area of regulation vehicle velocity V SP0 in vehicle velocity V SP In domain, stage-geared gearbox 1 does not have rotational speed difference and absorbs element, therefore carries out electricity merely with motor driving force with " EV mode " Machine starting.Moreover, in running region, as shown in figure 3, when the driving force of request is larger, using by utilizing motor driven " the parallel HEV mode " that power assists engine drive power is come the thought for the speed change pattern coped with.That is, with vehicle velocity V SP Raising, ICE shift gear carries out the transformation of shift gear, EV speed change according to (ICE1st →) ICE2nd → ICE3rd → ICE4th Gear carries out the transformation of shift gear according to EV1st → EV2nd.Thus, the thought based on speed change pattern shown in Fig. 3 and make use In the speed change corresponding diagram for issuing the speed change request switched over to speed change pattern.
The speed change pattern such as Fig. 4 that can be obtained using the stage-geared gearbox 1 with engaging clutch C1, C2, C3 It is shown.In addition, " Lock " in Fig. 4 indicates that the interlocking pattern invalid as speed change pattern, " EV- " indicate the 1st dynamoelectric and power generation The state with the driving connection of driving wheel 19, " ICE- " do not indicate shape of the internal combustion engine ICE not with the driving connection of driving wheel 19 to machine MG1 State.Moreover, under speed Control, without using whole speed change patterns shown in Fig. 4, it is of course possible to as needed and from these speed changes It is selected in mode.In the following, being illustrated to each speed change pattern.
When the 2nd engaging clutch C2 is placed in " N " and the 3rd engaging clutch C3 is placed in " N ", according to the 1st engaging clutch The position of C1 and become following speed change pattern.It is " EV-ICEgen " if the 1st engaging clutch C1 is placed in " Left ", such as It is " Neutral " that fruit the 1st, which engages clutch C1 to be placed in " N " then, is " EV- if the 1st engaging clutch C1 is placed in " Right " ICE3rd".Here, the speed change pattern of " EV-ICEgen " be in parking by internal combustion engine ICE using the 1st motor generator MG1 into It is selected when generating electricity when the MG1 idle running power generation of row power generation or on the basis of MG1 generates electricity along with the dual idle running of MG2 power generation Mode.The speed change pattern of " Neutral " is generated electricity by internal combustion engine ICE using the 2nd motor generator MG2 in parking The mode selected when MG2 idle running power generation.
The 2nd engaging clutch C2 be placed in " N " and the 3rd engaging clutch C3 be placed in " Left " when, according to the 1st engage from The position of clutch C1 and become following speed change pattern.It is " EV1st if the 1st engaging clutch C1 is placed in " Left " ICE1st " is " EV1st ICE- " if the 1st engaging clutch C1 is placed in " N ", if the 1st engaging clutch C1 is placed in " Right " is then " EV1st ICE3rd ".Here, the speed change pattern of " EV1st ICE- " is that internal combustion engine ICE is made to stop and utilize The mode of " EV mode " that the 1st motor generator MG1 is travelled or the 2nd motor generator is utilized by internal combustion engine ICE on one side MG2 power generation, the mode for carrying out " serial HEV mode " that 1 gear EV is travelled using the 1st motor generator MG1 on one side.Thus, for example, In the traveling for having selected " serial HEV mode " based on " EV1st ICE- ", based on due to deceleration caused by driving force is insufficient By the 1st engaging clutch C1 from " N " to " Left " switching.In this case, to based on " the EV1st for ensuring driving force The traveling transformation for " the parallel HEV mode (1 grade) " that the speed change pattern of ICE1st " is realized.
When the 2nd engaging clutch C2 is placed in " Left " and the 3rd engaging clutch C3 is placed in " Left ", if the 1st engaging It is " EV1st ICE2nd " that the position of clutch C1, which is placed in " N " then,.Thus, for example, in " string of the selection based on " EV1st ICE- " The driving force requested in 1 gear EV traveling of row HEV mode " is higher, so that the 2nd engaging clutch C2 is switched to from " N " "Left".In this case, " the parallel HEV realized to the speed change pattern based on " the EV1st ICE2nd " for ensuring driving force The traveling of mode " changes.
The 2nd engaging clutch C2 be placed in " Left " and the 3rd engaging clutch C3 be placed in " N " when, according to the 1st engage from The position of clutch C1 and become following speed change pattern.It is if the 1st engaging clutch C1 is placed in " Left " " EV1.5ICE2nd " is " EV-ICE2nd " if the 1st engaging clutch C1 is placed in " N ".
When the 2nd engaging clutch C2 is placed in " Left " and the 3rd engaging clutch C3 is placed in " Right ", if the 1st card It is then " EV2nd ICE2nd " that the position for closing clutch C1, which is " N ",.Thus, for example, having selected based on " EV1st ICE2nd " Speed change pattern " parallel HEV mode " under traveling in, according to raising speed speed change request and by the 3rd engaging clutch C3 from " Left " is switched to " Right " via " N ".In this case, to based on " the EV2nd ICE2nd " that EV shift gear is set as to 2 gears Speed change pattern " parallel HEV mode " traveling transformation.For example, having selected the speed change pattern based on " EV2nd ICE4th " " parallel HEV mode " traveling in, requested according to reduction of speed speed change and cut the 2nd engaging clutch C2 from " Right " via " N " It is changed to " Left ".In this case, it is realized to the speed change pattern based on " the EV2nd ICE2nd " that ICE shift gear is set as to 2 gears " parallel HEV mode " traveling transformation.
The 2nd engaging clutch C2 be placed in " N " and the 3rd engaging clutch C3 be placed in " Right " when, according to the 1st engage from The position of clutch C1 and become following speed change pattern.It is " EV2nd if the 1st engaging clutch C1 is placed in " Left " ICE3rd ' " is " EV2nd ICE- " if the 1st engaging clutch C1 is placed in " N ", if the 1st engaging clutch C1 is placed in " Right " is then " EV2nd ICE3rd ".Here, the speed change pattern of " EV2nd ICE- " is that internal combustion engine ICE is made to stop and utilize The mode of " EV mode " that the 1st motor generator MG1 is travelled or the 2nd motor generator is utilized by internal combustion engine ICE on one side MG2 is generated electricity, is utilized the modes of " the serial HEV mode " of 2 gear EV traveling of the 1st motor generator MG1 progress on one side.Thus, Such as in the traveling of " parallel HEV mode " for having selected the speed change pattern based on " EV2nd ICE2nd ", according to raising speed speed change It requests and the 2nd engaging clutch C2 is switched to " N " from " Right ", the 1st engaging clutch C1 is switched to from " N " "Right".In this case, it is realized to the speed change pattern based on " the EV2nd ICE3rd " that ICE shift gear is set as to 3 gears The traveling of " parallel HEV mode " changes.
When the 2nd engaging clutch C2 is placed in " Right " and the 3rd engaging clutch C3 is placed in " Right ", if the 1st card It is " EV2nd ICE4th " that the position for closing clutch C1, which is placed in " N " then,.
The 2nd engaging clutch C2 be placed in " Right " and the 3rd engaging clutch C3 be placed in " N " when, according to the 1st engage from The position of clutch C1 and become following speed change pattern.It is if the 1st engaging clutch C1 is placed in " Left " " EV2.5ICE4th " is " EV-ICE4th " if the 1st engaging clutch C1 is placed in " N ".
When the 2nd engaging clutch C2 is placed in " Right " and the 3rd engaging clutch C3 is placed in " Left ", if the 1st card It is then " EV1st ICE4th " that the position for closing clutch C1, which is " N ",.
[starting control processing structure]
Fig. 5 is indicated by the stream of (starting controller used) the starting control processing executed of transmission control unit 23 of embodiment 1 Journey.In the following, being illustrated to each step of the Fig. 5 for an example for indicating starting control processing structure.In this process, under 1st engaging clutch C1 and the 2nd engaging clutch C2 are placed in " N " and the 3rd engaging clutch C3 are placed in " Right " by face When " EV2nd ICE- " speed change pattern be known as " EV2nd ".In addition, in the following, by the 1st engaging clutch C1 and the 2nd engaging Clutch C2 is placed in " N " and the 3rd speed change pattern for engaging " EV1st ICE- " when clutch C3 is placed in " Left " is known as “EV1st”。
In step sl, judge whether it is the selection traveling of the speed change pattern of " EV2nd ".In the YES (row under EV2nd Sail) in the case where enter step S2, execute the judgement of step S1 repeatedly in the case where NO (traveling other than EV2nd).
Here, aobvious according to the sensor signal from the 1st sleeve portion sensor 81 and the 2nd sleeve portion sensor 82 It is shown as the position of " N " and is shown as the position of " Right " from the sensor signal of the 3rd sleeve portion sensor 83 and judges For the speed change pattern based on " EV2nd ".
In step s 2, it is judged as in step sl after the selection traveling of the speed change pattern of " EV2nd ", judges whether It has reduced speed now.S3 is entered step in the case where YES (reducing speed now), is executed repeatedly in the case where NO (not reducing speed now) The judgement of step S2.
Here, according to the reduction of speed, so that foot is left the operation of accelerator, the operation for entering into brake etc. and be judged as out Begin to slow down.
In step s3, it is judged as in step s 2 after having reduced speed now, then judges from " EV2nd " to " EV1st " Whether EV2nd → EV1st reduction of speed speed change of switching speed change pattern has started.YES (starting EV2nd → EV1st reduction of speed speed change) In the case where enter step S4, execute sentencing for step S3 repeatedly in the case where NO (not starting EV2nd → EV1st reduction of speed speed change) It is disconnected.
Here, according to from " EV2nd " to " EV1st " switch speed change pattern speed change request the presence or absence of and judge EV2nd → Whether EV1st reduction of speed speed change has started.
In step s 4, after being judged as that EV2nd → EV1st reduction of speed speed change has started in step s3, then judgement is It is no to be in vehicle stop state.S5 is entered step in the case where YES (vehicle stopping), in the case where NO (in traveling) repeatedly Execute the judgement of step S4.
Here, whether vehicle stop state is shown as according to the speed signal from vehicle speed sensor 71 and judges vehicle and stops Only state.
In step s 5, it is judged as after vehicle stop state in step s 4, then judges the drop to " EV1st " Whether fast speed change has finished.S6 is entered step in the case where YES (finishing to the reduction of speed speed change of EV1st), in NO (to EV1st Reduction of speed speed change do not finish) in the case where enter step S11.
Here, aobvious according to the sensor signal from the 1st sleeve portion sensor 81 and the 2nd sleeve portion sensor 82 Be shown as " N " and be shown as the position of " Left " from the sensor signal of the 3rd sleeve portion sensor 83 and be judged as to The reduction of speed speed change of " EV1st " finishes.Moreover, being shown as being not up in the sensor signal from the 3rd sleeve portion sensor 83 In the case where the position of " Left ", it is judged as to the speed change of " EV1st " and does not finish.
In step s 6, it is judged as in step s 5 after having finished to the reduction of speed speed change of " EV1st ", according to driver couple The operation of gear lever and judged whether to from " D gear " to the block selecting of " P gear " or " N gear " operate.It (has been carried out to P, N in YES Block selecting operation) in the case where enter step S7, enter step S10 in the case where NO (do not carry out block selecting operation) to P, N.
Here, judged to grasp from " D gear " to the block selecting of " P gear " or " N gear " according to the switching signal from disconnect switch 77 Make.
In the step s 7, it is judged as the block selecting operation carried out to P, N in step s 6 or is judged as in step s 8 Do not carry out to D keep off block selecting operation after, as stage-geared gearbox 1 speed change pattern and maintain " EV1st " and enter step Rapid S8.
Here, " EV1st " is maintained to refer to that holding makes the 1st engaging clutch C1 and the 2nd engaging clutch C2 be in " N " Position and the 3rd engaging clutch C3 is made to be in the state of the position " Left ".
In step s 8, after maintaining " EV1st " in the step s 7, then judge whether through driver to gear lever It operates and operated from " P gear " or " N gear " to the block selecting of " D gear ".YES (carried out block selecting operation) to D the case where Under enter step S9, returned in the case where NO (do not carry out block selecting operation) to D to step S7.
Here, judged to grasp from " P gear " or " N gear " to the block selecting of " D gear " according to the switching signal from disconnect switch 77 Make.
In step s 9, it is judged as in step s 8 after operated to the block selecting of " D gear ", then in step S7 " EV1st " maintained starts to walk and enters end step.
In step slo, it is judged as in step s 6 after the block selecting operation (=D gear) not carried out to P, N, then with drop " EV1st " that fast speed change finishes is started to walk again and enters end step.
In step s 11, it is judged as in step s 5 after not finishing to the reduction of speed speed change of " EV1st ", then makes speed change " EV2nd " before mode starts to reduction of speed speed change returns and enters step S12.
That is, being shown as the feelings of the not up to position of " Left " in the sensor signal from the 3rd sleeve portion sensor 83 Under condition, coupling sleeve 53 is made to be back to the position of " Right " from position when being judged as that vehicle stops in the opposite direction.
In step s 12, in step s 11 to the return of " EV2nd " operation after, according to driver to the operation of bar and It has judged whether to operate from " D gear " to the block selecting of " P gear " or " N gear ".YES's (having carried out the block selecting operation to P, N) In the case of enter step S13, enter step S16 in the case where NO (do not carry out block selecting operation) to P, N.
Here, judged to grasp from " D gear " to the block selecting of " P gear " or " N gear " according to the switching signal from disconnect switch 77 Make.
In step s 13, it is judged as the block selecting operation carried out to P, N in step s 12 or sentences in step S14 Break not carry out then maintaining as the speed change pattern of stage-geared gearbox 1 after the judgement that the block selecting that D is kept off operates " EV2nd " simultaneously enters step S14.
Here, " EV2nd " is maintained to refer to holding so that the 1st engaging clutch C1 and the 2nd engaging clutch C2 are in The position " N " and the 3rd engaging clutch C3 is made to be in the state of the position " Right ".
In step S14, after maintaining " EV2nd " in step s 13, the operation of bar is judged then according to driver Whether carry out operating from " P gear " or " N gear " to the block selecting of " D gear ".In the case where YES (having carried out the block selecting operation to D) S15 is entered step, is returned in the case where NO (not carrying out the block selecting operation to D) to step S13.
Here, judged to grasp from " P gear " or " N gear " to the block selecting of " D gear " according to the switching signal from disconnect switch 77 Make.
In step S15, it is judged as after operated to the block selecting of " D gear " in step S14, then with step " EV2nd " maintained in S13 starts to walk and enters end step.
In step s 16, be judged as in step s 12 do not carry out to P, N block selecting operation (=D gear) after, then with " EV2nd " returned in step s 11 is started to walk again and enters end step.
In the following, being illustrated to effect.
The effect of the start control device of the hybrid vehicle of embodiment 1 is divided into " starting control processing effect ", " is risen Step control action ", " characteristic action of starting control " are illustrated.
[starting control processing effect]
In the following, being based on flow chart shown in fig. 5, start under the EV driving status of the speed change pattern based on " EV2nd " Carry out slow down and speed change and make vehicle stop and from vehicle stop state carry out EV starting when starting control processing act on into Row explanation.
If reduced speed now under the EV driving status that the speed change pattern selection based on " EV2nd " is realized and in deceleration Since the reduction of speed speed change of " EV2nd " to " EV1st " switching speed change pattern, then in a flow chart in figure 5 according to step S1 → step Rapid S2 → step S3 → step S4 advances.If since " EV2nd " to the reduction of speed speed change of " EV1st ", in step s 4 It is judged as in during the deceleration for not reaching vehicle stopping, carries out the reduction of speed speed change of from " EV2nd " to " EV1st ".
Moreover, have reached vehicle stop state if be judged as in step s 4, judge in step S5 below to Whether the speed change of " EV1st " has finished.It has been finished if be judged as in step S5 to the reduction of speed speed change of " EV1st ", has entered dimension Step S6~step the S10 of " EV1st " after holding reduction of speed speed change.On the other hand, if be judged as in step s 5 to " EV1st " Reduction of speed speed change do not finish, then enter maintain reduction of speed speed change before " EV2nd " step S11~step S16.
In entering step S6~step S10 process, for example, if it is desired to when realizing that prolonged vehicle stops, is long Between parking etc. and carry out the operation from " D gear " to the block selecting of " P gear " or " N gear ", then enter step S7 → step S8 from step S6. As long as operate to the block selecting of " D gear " moreover, not being judged as in step s 8, executed repeatedly according to step S7 → step S8 and the process advanced, in the step s 7, as stage-geared gearbox 1 speed change pattern and maintain " EV1st ".
Moreover, operating to the block selecting of " D gear " as start request has been carried out if be judged as in step s 8, from step Rapid S8 advances according to step S9 → end step, in step s 9, by " EV1st " that maintains in step S7 as starting change The operation and enter into the operation of accelerator and start to walk that fast mode and basis leave foot from brake.On the other hand, for example, such as Fruit waits signal of short time vehicle stopping etc. and " D gear " is kept not carry out block selecting operation unchangeably, then from step S6 according to step Rapid S10 → end step and advance.In step S10, " EV1st " that reduction of speed speed change is finished is as starting speed change mould Formula, simultaneously basis makes foot leave the operation of brake and enter into the operation of accelerator and started to walk again.
In entering step S11~step S16 process, firstly, if being judged as the change to " EV1st " in step s 5 Speed does not finish, then S11 is entered step from step S5, in step s 11, before starting speed change pattern to reduction of speed speed change " EV2nd " restores.Moreover, for example, if it is desired to carrying out prolonged vehicle stopping, prolonged parking etc. and carrying out from " D Gear " is operated to the block selecting of " P gear " or " N gear ", then is advanced from step S12 according to step S13 → step S14.As long as moreover, Step S14, which is not judged as, operate to the block selecting of " D gear ", then executes according to step S13 → step S14 and advance repeatedly Process, in step s 13, as stage-geared gearbox 1 speed change pattern and maintain " EV2nd ".
Moreover, operating to the block selecting of " D gear " as start request has been carried out if be judged as in step S14, from Step S14 advances according to step S15 → end step, in step S15, " EV2nd " conduct that will maintain in step s 13 Simultaneously basis makes foot leave the operation of brake and enter into the operation of accelerator and start to walk to starting speed change pattern.Another party Face, for example, if waiting signal of vehicle stopping of short time etc. and " D gear " being kept not carry out block selecting operation unchangeably, from Step S12 advances according to step S16 → end step.In step S16, " EV2nd " that restores in step s 11 is made It is again started to walk for starting speed change pattern and according to making foot leave the operation of brake and enter into the operation of accelerator.
[starting control action]
In the following, based on Fig. 6~Fig. 9 to along with from the reduction of speed speed change of " EV2nd " to " EV1st " switching speed change pattern Step control action is illustrated.
Firstly, being based on the stream of the MG1 torque of stage-geared gearbox 1 of the Fig. 6 to the selection speed change pattern of " EV2nd " when It is dynamic to be illustrated.
Under the speed change pattern of " EV2nd ", the 1st engaging clutch C1 is in the position " N ", and the 2nd engaging clutch C2 is in The position " N ", the 3rd engaging clutch C3 are in the position " Right ".Therefore, MG1 torque is from the 1st motor generator MG1 according to the 2nd The 107 → the 16th 116 → differential gear of gear 17 of axis 12 → the 4th the 104 → the 9th the 109 → the 3rd the 13 → the 7th gear of axis of gear of gear → 18 → driving wheel of drive shaft 19 and flow.
In the following, being based on the stream of the MG1 torque of stage-geared gearbox 1 of the Fig. 7 to the selection speed change pattern of " EV1st " when It is dynamic to be illustrated.
Under the speed change pattern of " EV1st ", the 1st engaging clutch C1 is in the position " N ", and the 2nd engaging clutch C2 is in The position " N ", the 3rd engaging clutch C3 are in the position " Left ".Therefore, MG1 torque is from the 1st motor generator MG1 according to the 2nd axis The 107 → the 16th 116 → differential gear of gear, the 17 → drive of 12 → the 5th the 105 → the 10th the 110 → the 3rd the 13 → the 7th gear of axis of gear of gear 18 → driving wheel of moving axis 19 and flow.
Therefore, from " EV2nd " to " EV1st " switches the reduction of speed speed change of speed change pattern, by making the 3rd engaging clutch C3's Coupling sleeve 53 marches to the bonding station of " Left " via the position " N " from the bonding station of " Right " and realizes.At this point, the 1st It is constant that the engaging of engaging clutch C1 and the 2nd clutch C2 is in the position " N ".
Starting control based on Fig. 8 and Fig. 9, to the reduction of speed speed change along with from " EV2nd " to " EV1st " switching speed change pattern Production is with being illustrated.Here, have based on " Right " and " Left " 2 bonding stations clutch section the 3rd engage from Clutch C3 is equivalent to the start clutch engaged when there are start request.Moreover, by the 3rd engage clutch C3 in by coupling The bonding station of sleeve 53 and the composition of right side jaw clutch ring 59 and claw tooth 53b, 59b are in the clutch section of " Right " Referred to as " MG1 2nd clutch " (being equivalent to the 2nd starting clutch).By the 3rd engage clutch C3 in by coupling sleeve 53 The clutch section for being in " Left " with the bonding station of the composition of left side jaw clutch ring 56 and claw tooth 53a, 56a is known as " MG1 1st clutch " (being equivalent to the 1st starting clutch).
Fig. 8 shows the reduction of speed speed changes for switching the speed change pattern of stage-geared gearbox 1 from " EV2nd " to " EV1st " to exist Timing diagram when being finished in deceleration and stopping vehicle.In the Fig. 8, when moment t1 is the open command of MG1 2nd clutch It carves.Moment t2 is that the disconnection of MG1 2nd clutch finishes the moment.Moment t3 is the engagement command moment of MG1 1st clutch.When It carves the engagement that t4 is MG1 1st clutch and finishes the moment.Moment t5 is the vehicle stop timing.Moment t6 be kept off from D to P gear or The block selecting of N gear operates the moment.
If there is the reduction of speed speed change request of from " EV2nd " to " EV1st " switching speed change pattern in deceleration, at the moment T1 exports open command to MG1 2nd clutch, and the disconnection of MG1 2nd clutch is finished in moment t2.From moment t2 to when It carves between t3, the coupling sleeve 53 of the 3rd engaging clutch C3 is in equal with the 1st clutch side MG1 and MG1 2nd clutch side Unassembled position, stage-geared gearbox 1 are in neutral position state.Thus, the revolving speed of the 1st motor generator MG1 is in moment t2 It is increased between moment t3 with the decline of motor load.
Moreover, exporting engagement command to MG1 1st clutch in moment t3, MG1 1st clutch is bonded in deceleration At the time of t4 finish.In moment t4 between moment t5, the revolving speed of the 1st motor generator MG1 also with speed decline and Decline, in vehicle stop timing t5, the revolving speed of the 1st motor generator MG1 is become zero.
It finishes, therefore the t5 to moment t6 at the time of under D is kept off, makees in vehicle stop timing t5 to the speed change of " EV1st " " EV1st " for maintaining the engagement based on MG1 1st clutch to realize for starting shift gear.Moreover, if being carried out in moment t6 The block selecting operation kept off to P gear or N is kept off from D to disconnect MG1 1st clutch then in the case where normal shifting control method (dotted line in Fig. 8), so that stage-geared gearbox 1 is in neutral position state.However, regardless of whether to keep off from D to P gear or N gear Block selecting operation, after the moment t6 until until carrying out start request operation next time, tieed up as shift gear is started to walk It holds " EV1st " that the engagement based on MG1 1st clutch is realized.
Fig. 9 expression exists the reduction of speed speed change that the speed change pattern of stage-geared gearbox 1 from " EV2nd " to " EV1st " switches Timing diagram when not finished in deceleration and stopping vehicle.In the Fig. 9, moment t1 is the open command of MG1 2nd clutch Moment.Moment t2 be the vehicle stop timing and be MG1 2nd clutch the recovery engagement command moment.Moment t3 is MG1 2nd The recovery engagement of clutch finishes the moment.Moment t4 is to be kept off from D to the block selecting that P gear or N are kept off operating the moment.
If there is the drop of from " EV2nd " to " EV1st " switching speed change pattern in the deceleration before vehicle will stop Fast speed change request, then export open command to MG1 2nd clutch in moment t1, but be not to wait for the disconnection of MG1 2nd clutch It finishes and vehicle is stopped in moment t2.Thus, in vehicle stop timing t2 by the recovery engagement command of MG1 2nd clutch Output, the recovery of MG1 2nd clutch are bonded on moment t3 and finish.That is, the coupling sleeve 53 of the 3rd engaging clutch C3 reverts to Shift gear before flanking the reduction of speed speed change for being known as " EV2nd " of conjunction with MG1 2nd clutch.
Moreover, restore to finish in moment t3 to the speed change of " EV2nd ", therefore the t3 to moment t4 at the time of under D is kept off, as Starting shift gear and maintain based on MG1 2nd clutch engagement realize " EV2nd ".Moreover, if being carried out in moment t4 The block selecting operation kept off to P gear or N is kept off from D to disconnect MG1 2nd clutch then in the case where normal shifting control method (dotted line in Fig. 9), stage-geared gearbox 1 become neutral position state.However, regardless of whether keeping off the block selecting kept off to P gear or N from D Operation maintains to be based on after moment t4 until carrying out start request operation next time as starting shift gear " EV2nd " that the engagement of MG1 2nd clutch is realized.
[characteristic action of starting control]
In embodiment 1, be formed as such as flowering structure, that is, if the 3rd engaging clutch C3 is engaged when vehicle stops, Maintain the engagement of the 3rd engaging clutch C3 until carrying out starting next time inside comprising vehicle stop state.
That is, in the case where starting is engaging clutch with clutch, if the mutual phase in the top surface of claw tooth is consistent, It can not then advance in the direction of joining, if to be engaged reluctantly, due in the contact of claw tooth, the biography at engagement initial stage The variation of torque delivery and cause starting impact.In order to inhibit the starting impact, need to be engaged after dephasing, from And need the time.Therefore, it if to carry out the joint action of engaging clutch under vehicle stop state and start to walk, needs To until being engaged and finishing, to can not start to walk rapidly.
In contrast, the 3rd engaging clutch C3 engagement is existed from the start request of vehicle stop state in advance In the case of, the joint action without the 3rd engaging clutch C3 being engaged.Therefore, it is able to suppress starting impact, and from Time needed for step has been requested until vehicle start shortens.That is, even if there are quick start request, It can ensure corresponding quick starting response.
For example, keeping off when keeping off from P gear via N on upward trend or from P to when N gear block selecting, vehicle is in power transfer path It rearward glides under the N gear of cutting.Same on downhill path, vehicle glides forwards under N gear.
In this regard, being engaged when maintaining vehicle stopping inside until the starting next time until comprising vehicle stop state The engagement of 3rd engaging clutch C3.Therefore, under vehicle stop state on the slope, even if carrying out the operation kept off via N, to N The gear selecting of gear operates, and also can not power transfer path be cut off and be prevented the downslide of vehicle.
In embodiment 1, be formed as such as flowering structure, that is, carried out if kept off from D to P gear, N gear under vehicle stop state Block selecting operation, then until next time selection D gear until, maintain be based on " EV1st " or " EV2nd " starting shift gear (S7, S13)。
Therefore, though exist from P gear, N gear fast starting request in the case where, from kept off to D block selecting operation up to The time of vehicle start also shortens.
In embodiment 1, be formed as such as flowering structure, that is, the reduction of speed speed Control of from " EV2nd " to " EV1st " is in vehicle Start in deceleration before stopping, is finished to the reduction of speed speed change of " EV1st " when vehicle stops.At this point, if stopping shape in vehicle It carries out keeping off the block selecting operation kept off to P, N from D under state, then " EV1st " after maintaining reduction of speed speed change until selection D gear next time (S5→S6→S7→S8)。
Therefore, true for start request next time when the reduction of speed speed change to " EV1st " is finished when vehicle stops Protect the higher EV starting based on " EV1st " of starting driveability.
In embodiment 1, be formed as such as flowering structure, that is, the reduction of speed speed Control of from " EV2nd " to " EV1st " is in vehicle Start in deceleration before stopping, is not finished to the reduction of speed speed change of " EV1st " when vehicle stops.At this point, if reverting to reduction of speed " EV2nd " before speed change and carry out keeping off the block selecting operation kept off to P gear, N from D under vehicle stop state, then until select next time It is maintained until selecting D gear " EV2nd " (S5 → S11 → S12 → S13 → S14) after restoring.
Therefore, when the reduction of speed speed change to " EV1st " does not finish when vehicle stops, for start request next time Ensure that the EV based on " EV2nd " starts to walk.
In embodiment 1, if keeping D gear constant under vehicle stop state and not carrying out to other gears (P, N gear) Block selecting operation, then with based on " EV1st " or " EV2nd " starting shift gear and started to walk again (S6 → S10, S12 → S16)。
Therefore, it in the starting from waiting signal etc., is quickly risen for what the block selecting for not changing gear operated Step request, the time from start request operation until starting to walk again shorten.
In embodiment 1, speed changer is the stage-geared gearbox 1 of hybrid vehicle.1 shape of stage-geared gearbox As such as flowering structure, that is, have when the direction of travel for the coupling sleeve 53 for initiating from the position N is towards side selection " EV1st ", And the 3rd engaging clutch C3 of " EV2nd " is selected when towards the other side, do not have rotational speed difference and absorb element, to carry out EV It starts to walk (Fig. 3).
Therefore, when carrying out EV starting in hybrid vehicle, it is ensured that " EV1st " that selection is shared with coupling sleeve 53 Or the EV starting of the speed change pattern of " EV2nd ".
In the following, being illustrated to effect.
The effect being set forth below can be obtained in the start control device of the hybrid vehicle of embodiment 1.
(1) a kind of electric vehicle (hybrid vehicle), includes the motor the (the 1st as power source in drive system Motor generator MG1)；And speed changer (stage-geared gearbox 1), to from motor (the 1st motor generator MG1) Output carries out speed change and transmits to driving wheel 19, and there is speed changer (stage-geared gearbox 1) basis to initiate from open position Stroke and be engaged engaging clutch C1, C2, C3 of engagement as speed change element, wherein
Be provided with starting controller used (transmission control unit 23, Fig. 5), that is, will engage it is in clutch C1, C2, C3, When being known as starting clutch (the 3rd engaging clutch C3) there are the clutch being engaged when start request, if starting is used Clutch (the 3rd engages clutch C3) is engaged when vehicle stops, then comprising vehicle stop state inside up to next time Until step, the starting controller used engagement for maintaining starting with clutch (the 3rd engaging clutch C3).
Therefore, there are start request, it can be realized the response for inhibiting starting impact and being directed to start request Good vehicle start.On this basis, under vehicle stop state on the slope, even if having carried out via neutral gear (N gear) Operation is operated to the gear selecting of neutral gear (N gear), can also prevent the downslide of vehicle.
(2) speed changer (stage-geared gearbox 1) have with starting with clutch (MG1 1st clutch, MG1 2nd from Clutch) engagement starting shift gear (" EV1st ", " EV2nd "),
If carrying out grasping from traveling gear (D gear) to the block selecting of parking shift (P gear), neutral gear (N gear) under vehicle stop state Make, then until selection traveling gear (D gear) next time, starting controller used (transmission control unit 23, Fig. 5) maintains vehicle to stop Starting shift gear (" EV1st ", " EV2nd ") when only.
Therefore, on the basis of the effect of (1), though exist from parking shift (P gear), neutral gear (N gear) it is quick In the case where step request, can also it shorten from the time to the block selecting of traveling gear (D gear) operation until vehicle start.
(3) speed changer be with make the 1st starting clutch (MG1 1st clutch) engage 1 gear (" EV1st "), with And make (multiple-speed gear-box (the multi-stage gear change of 2 gears (" EV2nd ") of (MG1 2nd clutch) engagement of the 2nd starting clutch Fast device 1),
Starting controller used (transmission control unit 23, Fig. 5) starts in the deceleration before vehicle stopping from 2 gears The reduction of speed speed Control that (" EV2nd ") keeps off (" EV1st ") to 1, it is complete to the reduction of speed speed change of 1 gear (" EV1st ") when vehicle stops Bi Shi, if having carried out grasping from traveling gear (D gear) to the block selecting of parking shift (P gear), neutral gear (N gear) under vehicle stop state Make, then until next time selection traveling gear (D gear) until maintenance reduction of speed speed change after 1 keep off (" EV1st ") (S5 → S6 → S7 → S8)。
Therefore, on the basis of the effect of (2), when being finished when vehicle stops to the reduction of speed speed change of 1 gear (" EV1st "), It can ensure the EV starting based on higher 1 gear (" EV1st ") of starting driveability for start request next time.
(4) speed changer be with make the 1st starting clutch (MG1 1st clutch) engage 1 gear (" EV1st "), with And make (multiple-speed gear-box (the multi-stage gear change of 2 gears (" EV2nd ") of (MG1 2nd clutch) engagement of the 2nd starting clutch Fast device 1),
Starting controller used (transmission control unit 23, Fig. 5) starts in the deceleration before vehicle stopping from 2 gears (" EV2nd ") keeps off the reduction of speed speed change of (" EV1st ") not to 1 when vehicle stops to the reduction of speed speed Control of 1 gear (" EV1st ") When finishing, before reverting to reduction of speed speed change 2 gear (" EV2nd "), if under vehicle stop state carry out from traveling gear (D gear) to The block selecting operation of parking shift (P gear), neutral gear (N gear) maintains 2 after restoring then until selection traveling gear (D gear) next time It keeps off (" EV2nd ") (S5 → S11 → S12 → S13 → S14).
Therefore, it on the basis of the effect of (2), is not finished when vehicle stops to the reduction of speed speed change of 1 gear (" EV1st ") When, it can ensure that the EV based on 2 gears (" EV2nd ") starts to walk for start request next time.
(5) speed changer (stage-geared gearbox 1), which has, makes starting clutch (the MG1 1st of the 3rd engaging clutch C3 Clutch and MG1 2nd clutch) engagement starting shift gear (" EV1st ", " EV2nd "),
If keeping traveling gear (D gear) constant in vehicle stop state and not carrying out the block selecting to other gears (P, N gear) Operation, then starting controller used (transmission control unit 23, Fig. 5) is recurred with the shift gear that starts to walk (" EV1st ", " EV2nd ") It walks (S6 → S10, S12 → S16).
It therefore,, can for the quick start request operated without block selecting on the basis of the effect of (1)~(4) Shorten the time from start request operation until starting to walk again.
(6) electric vehicle is with motor (the 1st motor generator MG1, the 2nd motor generator MG2) and internal combustion engine ICE As the hybrid vehicle of power source,
Speed changer is following stage-geared gearbox 1, that is, is had in the coupling sleeve for initiating from neutral gear position (position N) 53 stroke directions be side when selection EV1 keep off (" EV1st ") and at the other side select EV2 keep off (" EV2nd ") engaging from Clutch (the 3rd engaging clutch C3), does not have rotational speed difference and absorbs element, to carry out EV starting.
Therefore, on the basis of the effect of (1)~(5), when hybrid vehicle carries out EV starting, it can be ensured that selection The EV starting of the speed change pattern of " EV1st " or " EV2nd " that keeps coupling sleeve 53 shared.
Embodiment 2
Embodiment 2 is the example for replacing the hybrid vehicle of embodiment 1 and being directed to electric car application start control device Son.
Firstly, being illustrated to structure.
The start control device of embodiment 2 is applied to following electric car (another example of electric vehicle), the electricity 2 gear gear-shift mechanisms of the electrical automobile with 1 motor generator and with 1 engaging clutch are as driving system structure Element.In the following, being illustrated to " overall system structure " of the start control device of the electric car of embodiment 2.
[overall system structure]
Figure 10 indicates to apply the drive system and control system of the electric car of the start control device of embodiment 2. In the following, being illustrated based on Figure 10 to overall system structure.
As shown in Figure 10, the drive system of electric car with motor generator MG and has 1 engaging clutch C 2 gear gear-shift mechanisms 1 '.
The motor generator MG is the permanent-magnet type synchronous motor of the three-phase alternating current by forceful electric power battery 3 ' as power supply.Electricity The stator of dynamic generator MG is fixed on the shell of motor generator MG, which is fixed on the speed changer of 2 fast gear-shift mechanisms 1 ' Shell 10 '.Moreover, even with the 1st axis 11 ' in the motor shaft of the rotor one of motor generator MG and 2 fast gear-shift mechanisms 1 ' It connects.DC converting is three-phase alternating current in power operation and three-phase alternating current is transformed to the inverter 4 ' of direct current in regeneration, It is connect via AC harness 5 ' with the stator coil of motor generator MG.Via terminal box 9 ' and utilization DC harness 8 ' by forceful electric power Battery 3 ' and inverter 4 ' connect.
Described 2 fast gear-shift mechanisms 1 ' are the constant mesh transmissions for 2 pairs of gear mesh for having gear ratio different, comprising: 2 A gear shaft, they are configured to be parallel to each other and are provided with gear in case of transmission 10 '；And 1 engaging clutch C, It selects gear mesh.The 1st axis 11 ' and the 3rd axis 13 ' are provided with as gear shaft.
1st axis 11 ' be with motor generator MG connection axis, the 1st axis 11 ' from the right side in Figure 10 in order Configured with the 2nd gear 102 ', the 3rd gear 103 '.2nd gear 102 ' and the 3rd gear 103 ' are the boss portions protruded in the axial direction It is inserted in the idler gear of the periphery of the 1st axis 11 ', is configured to drive relative to the 1st axis 11 ' via engaging clutch C Connection.
3rd axis 13 ' is the axis in the outlet side configuration of 2 fast gear-shift mechanisms 1 ', in the 3rd axis 13 ' from Figure 10 Right side is risen is configured with the 6th gear 106 ', the 7th gear 107 ', the 8th gear 108 ' in order.6th gear 106 ', the 7th gear 107 ' And the 8th gear 108 ' relative to the setting of the 3rd axis 13 ' be integrated (fixed comprising integration).Moreover, the 6th gear 106 ' and the 1st 2nd gear 102 ' of axis 11 ' engages, and the 7th gear 107 ' is engaged with the 16th gear 116 ' of differential gear 17 ', the 8th gear 108 ' It is engaged with the 3rd gear 103 ' of the 1st axis 11 '.
The engaging clutch C is installed between the 2nd gear 102 ' and the 3rd gear 103 ' of the 1st axis 11 ', is not had same Mechanism is walked, is the jaw clutch engaged by the engagement travel under rotation synchronous regime.Left side is in engaging clutch C When bonding station (Left), driving connection is carried out to the 1st axis 11 ' and the 3rd gear 103 '.Neutral position is in engaging clutch C When setting (N), the 1st axis 11 ' and the 2nd gear 102 ' are disconnected, and the 1st axis 11 ' and the 3rd gear 103 ' are disconnected.Engaging from When clutch C is in right side bonding station (Right), driving connection is carried out to the 2nd gear 102 ' of the 1st axis 11 '.Moreover, with 2 16th gear 116 ' of the engagement of the 7th gear 107 ' possessed by the 3rd axis 13 ' of fast gear-shift mechanism 1 ', via differential gear 17 ' And the drive shaft 18 ' of left and right is connect with the driving wheel 19 ' of left and right.
As shown in Figure 10, the control system of electric car has motor control unit 22 ' and transmission control unit 23'.In addition, motor control unit 22 ' and transmission control unit 23 ' are connected as being able to carry out pair by CAN communication line 25 ' To information exchange.
The motor control unit 22 ' (referred to as: " MCU ") electronic hair carried out according to the control instruction for inverter 4 ' The power of motor MG runs control, Regeneration control etc..
Transmission control unit 23 ' (the referred to as: " TMCU ") the electronic cause to outside figure based on defined input information Dynamic device exports current-order, thus carries out the speed Control switched over to the shift gear of 2 fast gear-shift mechanisms 1 '.In the speed change In control, clutch C3 is engaged along the 3rd of embodiment 1 the and engaging clutch C is selectively made to be engaged/disconnect, from 2 pairs Selection participates in the gear mesh of power transmitting in gear mesh.Thereby, it is possible to obtain low speed shift gear (selection the 3rd gear 103 ' and the 8th The gear mesh of gear 108 ') and higher speed gear gear (gear mesh of the 2nd gear 102 ' and the 6th gear 106 ' of selection).
In addition, " the change control system structure " of the start control device of the electric car about embodiment 2, in Fig. 2 institute In the structure for the embodiment 1 shown, engaging clutch C becomes a structure.About " speed change pattern structure ", become via neutral gear position The structure set and " low speed shift gear " and " higher speed gear gear " is switched over.About " speed Control processing structure ", in Fig. 5 institute In the structure for the embodiment 1 shown, becomes and " EV1st " is replaced with into " low speed shift gear " and " EV2nd " is replaced with to " high speed change The structure of speed gear ".
In the start control device of the electric car of embodiment 2, following effects can be obtained.
(7) electric vehicle is the electric car only as power source with motor (motor generator MG),
Speed changer is following 2 fast gear-shift mechanisms 1 ', that is, is had in the coupling sleeve for initiating from neutral gear position (position N) Direction of travel towards side when selection " low speed shift gear " and towards other side when select the engaging clutch of " higher speed gear gear " Device C.
Therefore, on the basis of the effect of above-mentioned (1)~(5), the structure of speed changer (2 fast gear-shift mechanism 1 ') can be made Become succinct, and " the low speed shift gear " or " higher speed gear that keep coupling sleeve general can be selected when electric car is started to walk The starting of gear ".
Start control device above based on 2 pairs of electric vehicles of the invention of embodiment 1 and embodiment is illustrated, But specific structure is not limited to these embodiments, without departing from invention involved in claim each in claims Purport, change, the addition etc. for allowing to design.
In embodiment 1,2, following example is shown, that is, as starting controller used (Fig. 5), if started in deceleration The reduction of speed speed Control of from " EV2nd " to " EV1st ", then judge to " EV1st " reduction of speed speed change whether vehicle stop when it is complete Finish.However, as starting controller used, if since " EV2nd " to " " EV1st " reduction of speed speed Control in deceleration, The location information of coupling sleeve is inputted when vehicle stops, judgement be close to " EV2nd " bonding station or approach The bonding station of " EV1st ".Furthermore, it is possible to be set as following example, that is, select the speed change pattern closer to side, make coupling sleeve Cylinder is to selection skidding and then speed change pattern is made to become " EV1st " or " EV2nd ".
In embodiment 1, it as speed changer, shows with 3 engaging clutch C1, C2, C3 and there is gear ratio not The example of the normal engagement type stage-geared gearbox 1 of same multipair gear mesh.In example 2, it as speed changer, shows The example of normal 2 engagement type fast gear-shift mechanisms 1 ' with 1 engaging clutch C and with 2 pairs of different gear mesh of gear ratio Son.However, as speed changer, as long as realizing at least one shift gear and having according to the stroke for initiating from open position And be engaged speed changer of the engaging clutch of engagement as speed change element, then it is not limited to shown in embodiment 1,2 The fast gear-shift mechanism 1 ' of stage-geared gearbox 1,2.
In embodiment 1, following example is shown, that is, be applied to start with 1 by start control device of the invention Machine, 2 motor generators and the stage-geared gearbox with 3 engaging clutches are as driving system structure element Hybrid vehicle.In example 2, following example is shown, that is, start control device of the invention is applied to have 1 A motor generator and electronic vapour of the 2 fast gear-shift mechanisms as driving system structure element with 1 engaging clutch Vehicle.As long as however, with the motor as power source and the change at least one engaging clutch in drive system The electric vehicle of fast device, can also be for electric vehicles such as hybrid vehicle, electric car, the fuel-cell vehicles of other forms And apply start control device of the invention.

Claims (6)

1. a kind of start control device of electric vehicle, the electric vehicle include in drive system as the electronic of power source Machine；And speed changer, speed change will be carried out to the output from the motor and transmitted to driving wheel, the speed changer has The multiple engaging clutches being engaged according to the stroke for initiating from open position as speed change element,
The multiple engaging clutch includes starting clutch, which is engaged when there are start request with clutch And link the motor and the driving wheel,
The start control device of the electric vehicle is characterized in that,
It is provided with starting controller used, this is starting controller used to be configured to, if the starting clutch is in vehicle stop state Engagement, then comprising the halted state inside until start request next time until, the starting controller used maintenance starting With the engagement of clutch,
The speed changer has the starting shift gear for making the starting clutch engagement,
If carrying out operating from traveling gear to the block selecting of parking shift, neutral gear under vehicle stop state, until select next time It is described starting controller used to be configured to maintain the starting shift gear until traveling gear.
2. the start control device of electric vehicle according to claim 1, which is characterized in that
The speed changer includes 1 gear for engaging the 1st starting clutch；And 2 gears for engaging the 2nd starting clutch,
What is kept off since described 2 keep off the reduction of speed speed Control kept off to described 1 in the deceleration before vehicle stopping and to described 1 When reduction of speed speed change is finished when vehicle stops, if carried out under vehicle stop state from traveling gear to parking shift, neutral gear Block selecting operation, then until selection traveling gear next time, starting controller used 1 gear maintained after reduction of speed speed change.
3. the start control device of electric vehicle according to claim 1, which is characterized in that
The speed changer includes 1 gear for engaging the 1st starting clutch；And 2 gears for engaging the 2nd starting clutch,
What is kept off since described 2 keep off the reduction of speed speed Control kept off to described 1 in the deceleration before vehicle stopping and to described 1 Reduction of speed speed change vehicle stop when not finishing when, it is described it is starting controller used so that gear is reverted to reduction of speed speed change before it is described 2 gear, such as Fruit has carried out operating from traveling gear to the block selecting of parking shift, neutral gear under vehicle stop state, then until selecting traveling next time Until gear, starting controller used 2 gear maintained after restoring.
4. the start control device of electric vehicle according to any one of claim 1 to 3, which is characterized in that
If traveling gear is kept not carry out the block selecting operation to other gears, the starting unchangeably under vehicle stop state Controller is started to walk again with the starting shift gear.
5. the start control device of electric vehicle according to claim 1 or 2, which is characterized in that
The electric vehicle is the hybrid vehicle for having motor and internal combustion engine as power source,
The speed changer is following stage-geared gearbox, that is, is had in the traveling side for the coupling sleeve for initiating from neutral gear position Selection EV1 gear and the engaging clutch that selects EV2 to keep off when towards the other side when to towards side, does not have rotational speed difference and absorbs Element, to carry out EV starting.
6. the start control device of electric vehicle according to claim 1 or 2, which is characterized in that
The electric vehicle is that only have electric car of the motor as power source,
The speed changer is following 2 gear gear-shift mechanism, that is, has the direction of travel in the coupling sleeve for initiating from neutral gear position When towards side selection low speed shift gear and when towards the other side selection higher speed gear gear engaging clutch.
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US20180106365A1 (en) 2018-04-19
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